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OBJECTIVE To investigate the effect of obstructive sleep apnea syndrome (OSAS) on blood lipid and blood glucose in elderly hypertensive patients. METHOD a One hundred and seven elderly hypertensive patients received examinations by polysomnography and according to the apnea-hypopnea index (AHI), the patients were divided into four groups, namely(More)
—In this paper, we analyze the hyperchaotic properties of cellular neural network (CNN) systems based on Lyapunov exponents. A four-step algorithm for selecting the hyperchaotic system is proposed. Firstly, calculate the maximum absolute value of time sequences, which is one of the properties of chaotic system, noted as boundedness. Secondly, check another(More)
OBJECTIVE To evaluate the influences of different aspiration results by Diver C.E. aspiration thrombectomy catheter on myocardium perfusion and clinical outcomes during emergency PCI (percutaneous coronary intervention) for the patients with acute ST segment elevation myocardial infarction (STEMI). METHODS The patients undergoing emergent PCI and using(More)
OBJECTIVE To analyze the correlation between mitral regurgitation grading and left ventricular ejection fraction in elderly patients (>60 years of age) in a 2-year follow-up. METHODS A total of 455 patients with the diagnosis of at least mild mitral regurgitation by echocardiography were divided into ischemic mitral regurgitation (IMR) group and(More)